Granted Patent
Utility
US 4,751,853 · App. 06/906,844
Differential with equal depth pinion cavities
Inventor:
Walter L. Dissett
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Sep 12, 1986
Inventor
Walter L. Dissett
Assignee (at issue)
Tractech Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.